Create Introduction to Sets.py

Author: KursadKalender

Challenges/Sets/Introduction to Sets.py

@@ -0,0 +1,10 @@
+def average(array):
+    array_set= set(array)
+    total_number=len(array_set)
+    return "{:.3f}".format(sum(array_set)/total_number) 
+
+if __name__ == '__main__':
+    n = int(input())
+    arr = list(map(int, input().split()))
+    result = average(arr)
+    print(result)